Magnetic clasp in 925 silver with a diameter of 8 mm...for straps

Magnetic clasp in 925 silver with a diameter of 8 mm" ......there is no better clasp for leather or fabric straps that have to be glued in and in Germany there are these magnet clasps in double (can cause skin irritation, not good), but not in 925 silver, I have some for that , the clasps are 8 x 18 mm in size and approx. 7 in weight and stay together magnetically, are also secured with a slide, the clasps are originally packed in threes, but can be purchased individually